Abstract
| Original language | English |
|---|---|
| Journal | Ecotoxicology |
| Volume | 23 |
| Issue number | 2 |
| Pages (from-to) | 163-174 |
| ISSN | 0963-9292 |
| DOIs | |
| Publication status | Published - 2014 |
Cite this
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Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus. / Nørregaard, Rasmus Dyrmose; Nielsen, Torkel Gissel; Friis Møller, Eva; Strand, Jakob; Espersen, Laila Stougaard Kofoed; Møhl, Malene.
In: Ecotoxicology, Vol. 23, No. 2, 2014, p. 163-174.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus
AU - Nørregaard, Rasmus Dyrmose
AU - Nielsen, Torkel Gissel
AU - Friis Møller, Eva
AU - Strand, Jakob
AU - Espersen, Laila Stougaard Kofoed
AU - Møhl, Malene
PY - 2014
Y1 - 2014
N2 - Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels
AB - Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels
U2 - 10.1007/s10646-013-1160-z
DO - 10.1007/s10646-013-1160-z
M3 - Journal article
VL - 23
SP - 163
EP - 174
JO - Ecotoxicology
JF - Ecotoxicology
SN - 0963-9292
IS - 2
ER -